adb connect api issue

[slugger941]

I want to test adb coonect by wifi.
So i use client.connect api to connect remote device.
But if I set ip that not used by any device, error is occured and main process is stopped.
I think that main process should not be stopped tough error is occured.
Let me know how to handle it.
My test code is like below.

let adb = require('adbkit');
let client = adb.createClient();

client.connect('192.168.0.1', '5555')
.then(function(id) {
console.log('connect id:%s', id);
})
.catch(function(err) {
console.error('Something went wrong:', err.stack);
})

Something went wrong: Error: cannot connect to 192.168.0.1:5555: ?곌껐??援ъ꽦?먯쑝濡쒕????묐떟???놁뼱 ?곌껐?섏? 紐삵뻽嫄곕굹, ?몄뒪?몃줈遺�???묐떟???놁뼱 ?곌껐???딆뼱議뚯뒿?덈떎. (10060)
at C:\code\testapp\node_modules\adbkit\lib\adb\command\host\connect.js:30:23
at tryCatcher (C:\code\testapp\node_modules\bluebird\js\main\util.js:26:23)
at Promise._settlePromiseFromHandler (C:\code\testapp\node_modules\bluebird\js\main\promise.js:503:31)
at Promise._settlePromiseAt (C:\code\testapp\node_modules\bluebird\js\main\promise.js:577:18)
at Async._drainQueue (C:\code\testapp\node_modules\bluebird\js\main\async.js:128:12)
at Async._drainQueues (C:\code\testapp\node_modules\bluebird\js\main\async.js:133:10)
at Immediate.Async.drainQueues [as _onImmediate] (C:\code\testapp\node_modules\bluebird\js\main\async.js:15:14)